In this week’s newsletter: For its 13th season, the investigative titan explores the complicated story of Keiko. Plus: five of the best podcasts to dip into

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The Mysterious Affair at Styles
Audible, all episodes available now
Peter Dinklage is Hercule Poirot in this stunningly cast take on Agatha Christie’s debut novel. Rob Delaney, Harriet Walter, Jessica Gunning and Himesh Patel join him in a high-budget, immersive production. Dinklage’s Poirot ranges from gravelly force of nature to wise, twinkly soul in the tale of a matriarch’s murder on the country estate where the Belgian detective’s friend Captain Hastings is recuperating from the first world war. Alexi Duggins